Water-indicating means for steam-boilers.



W. C BLU'NDELL.

WATER INDICAHNG MEANS FOR STEAM BOILERS.

APPLICATION FILED SEPT, 18. 1916.

1,267,622. Patented May 28, 191&

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W. C. BLUNDELL.

WATER INDICATING MEANS FOR STEAM BOILERS.

7 APPLICATION FILED SEPT, 18. 1916. I 1,267,622. Patented May 28, 1918.

- 0. 5 lll Zaie IBL'UNIJELL, LOS ANGELES, MARY E. BLUE-DELL,

Vi'ATEB-ZNDICATING EL Application filed September 18, 191

b (all Gd/0722 it may concern:

Be own that I, lViLLIAni C. Enos:- 3 "in, a ClLlZQll of the United States, resin-in it L ngeles, in the county of Les a d l fnl mprovemei i e c p z 1. ior oteannnoiie s n n is a specification. I v invention reia es to means e different stages of '7 '1, i boilers and the line and indicater in steam mar v object cal means in i and water comer whereby the safety,

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connection with tie stee i partments oi the boil it dang r a normal sta es may be indicated points exterior 01' nd adjacent to the once, to former invention of mine r1 ch Letters .latent of the United s were granted to me on the 10th da 9' 1.15, Serial Number 1,221,953, the it invention being a modification of ti e shown in the former application patent and embracing a number of valinprovements which are not shown further, to provide means at a point lower than the danger signal or stage, for indicat ing the op ator the necessity for continul or disco the firing of the boiler du ring the oration. Other objects to may appear n ailed description which will follow.

g to the drawings, F i front elevation of the assembled means. .e ig. 2 is a plan of the c .7 l I tion. s a sectional 1 the connections with the sectional :lan of Fig. ne indicator housing top and bo tom. big. ovation of one or the Sn "oi't therefor. Fig. '4 is side elevation of Similar characters of reference are used in the several views of the drawings and in CALIFORNIA, QQLS$IGNOR OF GEE-HALF TO 33653 ANGELES, GALIFGRNIA.

HS FQR STEfilII-BGILERS.

the specifications similar parts.

As in the case for indicating the same or of my former invention, here before referred to, I provide in this invention a plurality of expansion tubes which are supported at difierent elevations on the exterior of commonly connected with the steam and water compartments of the boiler in such a manner that the water from the boiler will rise in the'common water column and in the expansion tubes at or below the level of the water in the boiler, thus excluding the steam which is delivered to the tubes from the top of the boiler. The tubes above the Water level, however, will receive the steam and being heated from contact therewith will be expanded sufiiciently to operate the mechanical signals which will be hereinafter fully described.

It is desirable to indicate the high, normal and low water stages of the water for damage may ensue from either of the extreme stages and the normal indicating means is provided for a safety signal when the water is at any level between the high and low.

I provide a common vwater column I havng a rear flat extension 2 to which is secured he slab 3 or" vood or other suitable matei l by means of the bolts 4. The column two separate chambers, 5 and 6 formed and separated by means of the par- The lower and longer chamber 5 tor accommodating the rise of the water the column and is connected to the boiler means of a pipe 9 at the lower end of column. The upper and relatively -10lt1 chamber 6 is connected by means of me plug 10 and the pipe 11 with the steam compartment of the boiler, the pipe 11 being elevated sutliciently to insure a supply of dry steam to the column.

Bosses 13, 14: and 15 are formed on one side or" the column 1 and similar bosses i6, 1? and 18 are formed on the opposite de'thereof, all of the bosses being internally threaded and having passages communicating with the chamber 5 of the column, the bosses 1:2 and 16, 13 and 17, and 1 1 and 18 being diametrically opposite on the column and in the same transverse and longitudinal planes.

Each of the bosses 12, 13, 1d and 15 is pron; P1 i .1. i. i a i 9.,-

Fri

- bar ellects the movement or" the blue indicator B through the medium of the link or rod 78, which indicator, when it assumes an inclined position toward the right hand side of the indicator housing, indicates that the water stage is high, but not too high.

Likewise, as the water descends further in the boiler and in the water column 1 con nected therewith, the indicators W and B are successively operated by means of the 61 and 62 and the rods 79 and 80 connected therewith, respectively, when the tubes 32 and 83 are successively expanded.

The movement of the indicator W to the right indicates that the stage oi the water is normal, or at the intermediate point. The

operation of the indicator R, which is the red or danger signal, indicates that the stage or the water is below the lowermost tube 33 and that more water should be supplied.

is designed to place the lowermost tube at a point sufficiently above the bottom of the water compartment in the boiler to provide ample time in which to replenish the supply of the water without undue haste but in v the event that the signal should not be noticed at once, I provide the extra drip valve 19 which is attached to the boss on the water column, and the operator may ascertain whether or not the stage or the 1 water has reached a point below this valve by opening the valve. If no water may be drained 05 through the valve, the necessity for discontinuing the firing of the boiler is indicated.

t should be understood that the indicators operate in succession from the top to the bottom and from right to left, so that when the stage of the water is below the lowest of the tubes, all or" the indicators will be in their inclined positions. The spacing of the tubes 31, 32 and 33 should correspond to the requirements in each particular case.

Having thus described my invention, what 1 claim s new and desire Letters Patent for, is:

1' A water indicatin system for boilers comprising independently actuated indicators for the high, low and intermediate water levels in the boiler, separate steam and water connections leading from said boiler, expansion tubes in communication wth and supported on said water connection, and independent connections between each of said expansion tubes and said steam connection, and means for operably connecting said tubes with said indicators, for the purpose set forth.

A water indicating system for boilers 'sing a water column having separate and steam connections with the boiler,

expansion elements communicating therewith at the high, low and intermediate water levels in the boiler, individual connections between said expansion elements and said steam connection, and a visible mechanical indicator connected for operation with and by each of said elements.

3. A water indicating system for boilers comprising a water column having separate water and steam chambers connected, respectively, with the water and steam portions of the boiler, expansion elements supported thereon and communicating with the water compartment thereof and independen ly connected with the steam compartment thereof, and a visible mechanical indicator for each or said expansion elements arranged for operation with and by the expansion of said elements.

4. A water indicating system for boilers comprising a water column having separate water and steam chambers connected, respectively, with the water and steam portions of the boiler, expansion tubes supported thereon and communicating at opposit-e extremities with said water and steam chambers, a housing supported on said column, a plurality of indicators mounted for operation in said housing, and means sup ported on the outer ends of each of said tubes connected with and for operating said indicators to correspond to the expansion of the tubes.

5. A water indicating system for boilers comprising a water column connected with the water and steam portions of the boiler and provided with expansion tubes arranged at difierent elevations thereon, connections between said tubes and the steam 6. A water indicating systemfor boilers comprising a water column connected with the water and steam portions of the boiler and provided with a plurality of expansion tubes supported at difierent elevations, and connections with the steam and water portions or" the boiler, valves attached to said column opposite s id tubes for draining the water therefrom, and indicators operably connected with said tubes for indicating the high, intermediate and low stages of the water in the boiler.

7. A water indicating system for boilers comprising a water column having separate steam and water compartments respectively connected with the steam and water portions of the boiler, expansion tubes supported thereon and communicating therewith at different elevations, means for adpoints respectively in the chamber at @ting steam and Water from the boiuar' Water 

